upgrade black (now out of beta)

Author: jschlyter

pyproject.toml

@@ -45,7 +45,7 @@ readerwriterlock = "^1.0.9"
 
 [tool.poetry.dev-dependencies]
 alabaster = "^0.7.12"
-black = "^21.5b1"
+black = "^22"
 isort = "^5.6.4"
 pytest = "^6.1.2"
 pytest-black = "^0.3.12"